import numpy as np

aa = []
aa.append((1, 2, 3))
aa.append((4, 5, 6))
aa.append((7, 8, 9))
print(aa)
np.random.shuffle(aa)
print(aa)
print(aa[0:2])

# print(np.random.randint(10))

for i in range(0, 10, 2):
    print(i)
